T49 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs.
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Poisoning by, adverse effect of and underdosing of glucocorticoids, topically used
The appropriate 7th character is to be added to each code from category T49
A: initial encounter
D: subsequent encounter
S: sequela
Poisoning by, adverse effect of and underdosing of local antifungal, anti-infective and anti-inflammatory drugs
Poisoning by, adverse effect of and underdosing of antipruritics
Poisoning by, adverse effect of and underdosing of local astringents and local detergents
Poisoning by, adverse effect of and underdosing of emollients, demulcents and protectants
Poisoning by, adverse effect of and underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations
Poisoning by, adverse effect of and underdosing of ophthalmological drugs and preparations
Poisoning by, adverse effect of and underdosing of otorhinolaryngological drugs and preparations
Poisoning by, adverse effect of and underdosing of dental drugs, topically applied
Poisoning by, adverse effect of and underdosing of other topical agents
Poisoning by, adverse effect of and underdosing of unspecified topical agent
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